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Active substance(s): OXYBUTYNIN CHLORIDE

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TABLETS 2.5 mg and 5 mg
[Oxybutynin Hydrochloride]

Read all of this leaflet carefully before you start taking this
• Keep this leaflet. You may need to read it again.
• If you have any further questions, ask your doctor or
• This medicine has been prescribed for you. Do not pass it
on to others. It may harm them, even if their symptoms are
the same as yours.
• If any of the side effects gets serious, or if you notice any
side effects not listed in this leaflet, please tell your doctor
or pharmacist.
In this leaflet:
1. What are Oxybutynin Hydrochloride Tablets and what are
they used for
2. Before you take Oxybutynin Hydrochloride Tablets
3. How to take Oxybutynin Hydrochloride Tablets
4. Possible side effects
5. How to store Oxybutynin Hydrochloride Tablets
6. Further information
Oxybutynin relaxes and prevents spasms (contractions)
of the muscle of the bladder, and helps to control the release
of urine.
Oxybutynin Hydrochloride Tablets are used to treat the
following in adults:
• Loss of control in passing urine (urinary incontinence)
• Increased need or urgency to pass urine
• Problems passing urine due to multiple sclerosis and
spina bifida.
Oxybutynin Hydrochloride Tablets can be used in children
5 years and older to treat:
• Loss of control in passing urine (urinary incontinence)
• Increased need or urgency to pass urine
• Night time bedwetting, when other treatments have not

Oxybutynin Hydrochloride Tablets may affect your central
nervous system. If you have hallucinations, agitation,
confusion or sleepiness you should tell your doctor.
Taking other medicines:
Tell your doctor, or pharmacist if you are taking, have recently
taken or plan to take any other medicines.
• Other medicines to treat urinary disorders such as
propiverine or tolterodine
• Any other medicines which act in the same way as
Oxybutynin, these are called anticholinergic medicines.
Examples include atropine used in glaucoma, hyoscine
for nausea
• Medicines to stop vomiting such as phenothiazines
e.g. prochlorperazine
• Medicines used to relieve sickness such as
metoclopramide and domperidone
• Medicines to treat Parkinson’s disease such as
amantadine, levodopa or benzotropine mesylate
• Medicines called anticholinesterases used for Alzheimer’s
disease (e.g memantine)
• Medicines to treat heart conditions such as digitalis
• Medicines which dissolve in the mouth such as glyceryl
trinitrate as your saliva production may be reduced
• Medicines used to treat fungal infections
(e.g ketoconazole and itraconazole)
• Antihistamines used for allergies
• Medicines to treat psychotic disorders including
schizophrenia such as butyrophenones (eg. benperidol)
or clozapine
• Medicines called Monoamine Oxidase Inhibitors (MAOIs)
or tricyclic antidepressants used to treat depression
(e.g. Isocarboxazid and moclobemide).
Pregnancy and breast-feeding
Ask your doctor or pharmacist for advice before taking any
medicine. Your doctor will decide whether you need to take
this medicine during pregnancy and whether it is safe to do
so. You should not breast-feed whilst taking oxybutynin as it
passes into your milk.
Oxybutynin Hydrochloride Tablets and alcohol
These tablets can cause drowsiness which may be enhanced
if you consume alcohol.
Driving and using machines:
As Oxybutynin Hydrochloride Tablets may cause drowsiness
or blurred vision in some people, do not drive or operate
machinery, if affected.

Do not take Oxybutynin Hydrochloride Tablets if you:
• Are allergic (hypersensitive) to oxybutynin or any of
the ingredients of Oxybutynin Hydrochloride Tablets,
see section 6 for ingredients
• Have myasthenia gravis (muscle weakness)
• Suffer with glaucoma (high pressure and pain in the eyes)
• Have a blocked urinary tract causing a poor flow of urine
• Have severe ulcerative colitis (a form of inflammatory
bowel disease)
• Have toxic megacolon (dilated colon accompanied by
fever and abdominal pain)
• Have diseases of the intestine (gut) including obstructions
of the bowel
• Have porphyria which is a disorder of the skin and nervous

Important information about some of the ingredients of
Oxybutynin Tablets
Do not take these tablets if you have been told you have an
intolerance to some sugars as these tablets contain lactose.

Take special care with Oxybutynin Hydrochloride Tablets
If you suffer from any of the following you should tell your
doctor before taking this medicine:
• Diseases of the nervous system
• Liver or kidney problems
• Severe diarrhoea or constipation
• An overactive thyroid
• Heart disease, heart failure, a fast or irregular heart beat
• An enlarged prostate gland
• Diseases of the oesophagus (food pipe) including a hiatus
• High blood pressure
• A fever or are in a hot environment as Oxybutynin
Hydrochloride Tablets may reduce the amount you sweat
and this may increase your chance of heat stroke.

Children over 5 years
Urinary incontinence:
The usual dose is 2.5mg twice a day. This may be increased
to 5mg two or three times a day.

Check with your doctor or pharmacist before taking this
medicine if:
• The person taking this medicine is a child (use is not
recommended under 5 years of age).
Reduced saliva due to Oxybutynin Hydrochloride Tablets may
increase dental caries or oral infection.
If you notice vision changes whilst using Oxybutynin
Hydrochloride Tablets tell your doctor who may do a vision

180 x 320 mm

Always take Oxybutynin Hydrochloride Tablets exactly as your
doctor has told you. You should check with your doctor or
pharmacist if you are not sure.
The usual initial dose is 5mg two or three times a day.
This dose may be increased to a maximum of 5mg four times
a day.
Initially 2.5mg twice a day increased to 5mg twice a day
according to response.

Bed wetting:
The usual dose is 2.5mg twice a day, increased to 5mg two or
three times a day, with the last dose given before bedtime.
Children under 5 years
Not recommended.
The dose recommendations given above are a guideline only.
Your doctor may prescribe a different dose.
If you take more Oxybutynin Hydrochloride Tablets than
you should:
An overdose of this medicine may be harmful. If you or
someone else, have taken too much of your medicine tell
your doctor or pharmacist, or go to the nearest hospital
casualty department immediately.
If you forget to take Oxybutynin Hydrochloride Tablets:
If you forget to take a dose at the right time, take it as soon as
you remember, then go on as before. However you must take
care not to take two doses at the same time.
Do not take a double dose to make up for a forgotten dose.

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Allergic reactions:
If you experience an allergic reaction which may include
symptoms such as swelling of the face, neck, throat or body,
a rash which may be itchy or difficulty breathing; stop taking
the tablets and contact your doctor immediately.
If you experience any of the following contact your doctor
• Increased bruising, bleeding, nose bleeds or frequent
• Change in your vision such as blurred vision or double
Rare side effects (less than 1 per 1000 but more than
1 per 10 000 patients):
• Eyes sensitive to light, double vision
• Glaucoma (increased pressure behind the eyes)
• Ringing in the ears
• Shaking
• Increased appetite
• Changes in your faeces, problems with the anus,
inflammation of the stomach lining, narrowing of the
oesophagus, hernia (bulge in the stomach wall), delay in
emptying of the stomach (gastric atony), problems with
the tongue including swelling
• Arthritis (inflammation of the joints)
• Pelvic pain
• Stiffness in the whole body
• Fever
• Symptoms similar to those of flu such as headache,
sore throat, fever
• Suppression of milk in breast-feeding mothers.
• Low blood pressure
• Laryngitis (inflammation of the larynx), swelling of the
larynx, problems with breathing, increase in the amount of
mucus coughed up from the throat
• Changes in the urine, incontinence (leakage of urine)
• Increase in muscle tone and problems stretching the
• Genital disorders (in women), genital discharge
• General discomfort or uneasiness
• Irregular heart beat
• Skin discolouration (ecchymosis), skin sensitive to light,
hair disorders, skin rashes, small raised bumps on the
skin, increased sweating
• Changes in your liver which will be picked up in a blood
Uncommon side effects (less than 1 per 100 but more
than 1 per 1000 patients):
• Conjunctivitis (inflammation of part of the eye)
• Acne, skin rashes and skin discolouration, nail disorders,
Eczema, hair loss (Alopecia), reduction in sweating
• Migraine
• Tingling or numbness in hands or feet, a feeling of
‘spinning’ (vertigo)
• Abnormal dreams, feeling anxious
• Hoarseness (voice change)
• Difficulty swallowing, mouth ulcers, tongue or mouth
• Thirst
• Muscle cramps, muscle pain
• Breast pain (in men and women), inflammation of the
vaginal lining
• Anorexia (loss of appetite), dehydration
• Inflammation of the inside of the nose, hoarseness
(changes in the voice), nosebleeds
• Shortness of breath
• Bloating of stomach
• Urinary tract disorders, increase in the amount of times
needed to urinate, blood or pus in the urine, increase
in the need to urinate during the night, increase in the
urgency to urinate
• Widening of the blood vessels (vasodilation)
• Pain, swelling
• Abnormal ECG results
Common side effects (less than 1 per 10 but more than
1 per 100 patients):
• Constipation, diarrhoea, feeling sick (nausea), being
sick (vomiting), acid reflux, indigestion, wind (flatulence),
abdominal pain or discomfort, taste disturbances
• Swelling to any part of the body
• Urinary disorders including inability to pass water
(urinary retention), pain on urinating, difficulty starting
to urinate, changes in the amount of urine produced
• Feeling sleepy or drowsy, headache, dizziness
• Dryness of the inside of the nose, throat or mouth, cough,
sore or painful throat
• Palpitations (pounding or fluttering heart beat)
• Bronchitis (lung inflammation) or lung infections.
• Sinusitis (inflammation of the lining of the nose)
• Difficulty in sleeping, depression, feeling nervous,
feeling confused
• Blurred vision, dry eyes including dry eye syndrome
(Keratoconjunctivitis sicca)

180 x 320 mm

Dry skin, itching
High blood pressure
Urinary tract infections including cystitis
Pain in the hands or feet, joint pain or back pain
Weakness, tiredness
Chest pain

Very common side effects (more than 1 per 10 patients)
• Dry mouth
Frequency unknown (frequency cannot be estimated from
the available data)
• Not knowing where you are, feeling dizzy or impaired
awareness (Disorientation)
• Heat stroke
• Pseudo-obstruction (where the intestines can’t push
food through) in patients who are at risk from intestinal
disorders or who are taking other medicines which slow
down how quickly the stomach works.
• Hallucinations (seeing or hearing things that aren’t there)
• Night terrors
• Agitation, mental disorders, becoming dependent on
Oxybutynin (in patients with drug abuse history)
• Convulsions (fits) may occur (children are at higher risk
of these effects)
• Facial flushing (more marked in children than in adults)
• Falls
• Impotence or erectile dysfunction (in men)
• Changes in heart rhythm, including rapid heartbeat
If you get any of these side effects, please consult your
doctor as he may decrease your dose to reduce the
The following may be detected in blood tests performed
by your doctor
• Changes in the number blood cells or platelets
• Increased blood sugar
• Increase or decrease in blood pressure
• Inflammation of a vein under the skin
• Changes in the hormone, chemical and enzyme levels in
the body.
Reporting of side effects
If you get any side effects, talk to your doctor, pharmacist or
nurse. This includes any possible side effects not listed in this
leaflet. You can also report side effects directly via the Yellow
Card Scheme at:
By reporting side effects you can help provide more
information on the safety of this medicine.
Keep your Oxybutynin Hydrochloride Tablets out of the reach
and sight of children.
Do not store above 25°C.
Do not use Oxybutynin Hydrochloride Tablets after the expiry
date which is stated on the label.
The expiry refers to the last day of that month.
Do not use Oxybutynin Hydrochloride Tablets if you notice
visible signs of deterioration.
Medicines should not be disposed of via waste water or
household waste. Ask your pharmacist how to dispose of
medicines no longer required. These measures will help to
protect the environment.
What Oxybutynin Hydrochloride Tablets contain
The active substance(s) is Oxybutynin Hydrochloride/
Oxybutynin Chloride BP/Ph.Eur
The other ingredients are: Lactose monohydrate, Microcrystalline
cellulose, Calcium stearate, Indigo carmine (aluminium lake)
What Oxybutynin Hydrochloride Tablets look like and
contents of the pack
Description: Oxybutynin Hydrochloride Tablets 2.5 mg:
Blue, biconvex, uncoated capsule-shaped tablets, marked
“OB” scoreline “2.5” on one side and plain on the other side.
Oxybutynin Hydrochloride Tablets 5 mg: Blue, round,
biconvex, uncoated tablets, marked “OB” breakline “5”
on one side and plain on the other side.
Contents of pack: Blister pack containing 56 or 84 tablets.
7 tablets in a blister, 8 or 12 blisters in a carton.
Marketing Authorisation Holder
Co-Pharma Limited
Unit 4, Metro Centre,
Tolpits Lane, Watford, Herts.
UK, WD 18 9SS


Like all medicines, Oxybutynin Hydrochloride Tablets can
cause side effects, although not everybody gets them.

This leaflet was last revised in March 2015.

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Source: Medicines and Healthcare Products Regulatory Agency

Disclaimer: Every effort has been made to ensure that the information provided here is accurate, up-to-date and complete, but no guarantee is made to that effect. Drug information contained herein may be time sensitive. This information has been compiled for use by healthcare practitioners and consumers in the United States. The absence of a warning for a given drug or combination thereof in no way should be construed to indicate that the drug or combination is safe, effective or appropriate for any given patient. If you have questions about the substances you are taking, check with your doctor, nurse or pharmacist.